Fe₂O₃ Iron Oxide Nanopowder Water Dispersion (Alpha, 99.9%, 300 nm, 20 wt%) is a water-based suspension containing high-purity iron oxide (Fe₂O₃) nanoparticles that are in the alpha-phase (hematite). This dispersion has 300 nm particle size and a concentration of 20% by weight. Here’s a detailed breakdown of the material:
1. Composition:
- Iron Oxide (Fe₂O₃):
- Iron oxide (Fe₂O₃) is a compound of iron and oxygen, widely used in various applications due to its magnetic and catalytic properties. In this case, it is the alpha-phase (α-Fe₂O₃), which is the most stable form of iron oxide at room temperature.
- Alpha-Phase (α-Fe₂O₃):
- The alpha-phase (α-Fe₂O₃), also known as hematite, is a highly stable form of iron oxide. It is commonly used in industrial and chemical applications due to its durability, chemical stability, and magnetic properties.
- Purity (99.9%):
- The 99.9% purity indicates that the iron oxide nanoparticles are of very high quality, with minimal impurities, ensuring consistent and reliable performance in applications such as catalysis or magnetic devices.
- Particle Size (300 nm):
- With a 300 nm particle size, these nanoparticles are relatively larger compared to finer nanoparticles (e.g., 10 nm or 50 nm). While still in the nanoscale range, this size provides a lower surface area than finer particles but can be beneficial for applications where a larger particle size is desired, such as in certain types of pigments or coatings.
- Concentration (20 wt%):
- The dispersion contains 20% by weight of iron oxide nanoparticles suspended in water, making it a high-concentration dispersion. This concentration is suitable for industrial-scale applications where higher nanopowder content is needed.
2. Key Properties:
- Moderate Surface Area:
- With a 300 nm particle size, the material has a lower surface area compared to finer nanoparticles. However, it still retains significant surface reactivity, making it suitable for applications like coatings or pigments where a moderate surface area is effective.
- Chemical and Thermal Stability:
- Alpha-Fe₂O₃ is chemically stable and can withstand high temperatures without degrading. It is resistant to oxidation, which makes it useful in high-temperature and chemically harsh environments.
- Magnetic Properties:
- Fe₂O₃, in the alpha-phase, has magnetic properties, making it useful in applications such as magnetic recording materials, magnetic sensors, or ferrofluids.
- Water-Based Dispersion:
- This product is water-based, meaning it can be easily handled, integrated into aqueous systems, and is more environmentally friendly than organic solvent-based dispersions.
3. Applications:
- Pigments:
- Alpha-Fe₂O₃ (hematite) is commonly used as a red pigment in paints, coatings, ceramics, and cosmetics. The larger particle size (300 nm) makes it suitable for applications where a moderate level of color intensity and opacity is required.
- Magnetic Materials:
- The magnetic properties of Fe₂O₃ nanoparticles can be used in magnetic recording media, magnetic sensors, or data storage applications. They can also be used in ferrofluids or as a component in magnetic devices.
- Catalysis:
- Fe₂O₃ can act as a catalyst or a catalyst support in various reactions, including oxidation reactions. While the larger particle size may limit the surface area available for catalytic activity, it can still be effective in certain catalytic processes.
- Coatings:
- Iron oxide nanoparticles are used in coatings for corrosion protection and in composite materials. The 300 nm particles may be used in formulations where opacity and thickness are more important than a high surface area.
- Environmental Applications:
- Fe₂O₃ nanoparticles can be used in environmental remediation applications, such as water treatment, where they may help adsorb or remove contaminants from water or air.
- Energy Storage:
- Iron oxide nanoparticles are also being studied for use in energy storage devices, such as supercapacitors and batteries. The 300 nm particle size could be utilized for specific applications requiring moderate surface area and stability.
4. Advantages:
- High Purity:
- The 99.9% purity ensures minimal contaminants, providing better performance and consistency in sensitive applications like catalysis, coatings, and pigments.
- Moderate Particle Size (300 nm):
- The 300 nm particle size offers lower surface area compared to finer nanoparticles, making it more suitable for applications like pigments, coatings, and materials where large, less reactive particles are desired.
- Chemical and Thermal Stability:
- The alpha-phase of Fe₂O₃ is highly stable and resistant to oxidation, ensuring that the material performs well in demanding environments, including high temperatures and chemically harsh conditions.
- Water-Based Dispersion:
- The water-based formulation makes it safer and easier to handle, and it can be integrated into water-based processes or applications, providing an environmentally friendly alternative to solvent-based systems.
5. Handling and Storage:
- Handling:
- Shake or stir the dispersion before use to ensure uniform distribution of the nanoparticles in the water.
- Wear personal protective equipment (PPE), such as gloves, goggles, and a mask, when handling nanopowders, especially in concentrated forms, to avoid inhalation or contact with skin and eyes.
- Storage:
- Store the dispersion in a cool, dry place, away from direct sunlight and excessive heat, to preserve the stability of the nanoparticles.
- Ensure that the container is sealed properly to prevent evaporation of the water and contamination.
- Safety:
- While iron oxide is generally considered safe, nanoparticles should be handled with care. Ensure that the dispersion is used in a well-ventilated area to avoid inhaling fine particles.
Fe₂O₃ Iron Oxide Nanopowder Water Dispersion (Alpha, 99.9%, 300 nm, 20 wt%) is a high-purity, water-based suspension of alpha-phase iron oxide (Fe₂O₃) nanoparticles with a particle size of 300 nm and a 20% by weight concentration. This dispersion is suitable for applications in pigments, magnetic materials, catalysis, coatings, environmental remediation, and energy storage. The material offers chemical and thermal stability, magnetic properties, and is easy to handle due to its water-based nature. It is ideal for applications requiring a moderate surface area and size, such as in industrial coatings, pigments, and certain catalytic processes.